Shuttle for looms



y 30, 1929- s. TURNER ET AL 1,722,608

SHUTTLE FOR LOOMS Filed Sept. 26, 1928 Patented July so, 1929.-

UNITED stares PATENT QFFICE.

SAMUEL TURNER AND THOMAS EASTAUGH, OF ROCHDALE, ENGLAND, ASSIGNORS TO SAMUEL TURNER & COMPANY,

LIMITED, 0F SPOTLAND,

ROCI-IDALE, ENGLAND.

SHUTTLE son LOOMS.

Application filed September 28, 1928, Serial No. 308,398, and in Great This invention relates to shuttles for looms and has for its object to improve the shuttle threader so as to make it impossible for the shuttle to become unthreaded by the warp line due to the ballooning of the weft or to any other cause.

Many proposals have been made hitherto provide some means for facilitating the threading of the shuttle and for preventing the unthreading of the same during operation of the loom. One general type-to which this present invention belongscomprises a metallic threader block with a pointed beak or horn and having a longitudinal slot or thread passage therein in which there is placed and fixed a shield or coil to prevent unthreading. In some constructions the shield has taken the form of a helix or spiral or a pair of oppositely downwardly inclined flanges and the tip or tips of the shield has or have been located on a level lower than the tip of the beak.

In accordance with the present invention there is provided a shuttle having threading means of the above type, the shield comprising an elongated member of substantially rectangular form having'its upper part bent over and down so that its rear end is disposed .in a recess in the threader block and below the rear adjacent end thereof.

The invention also consists in the improved form of shuttle hereinafter described.

The accompanying drawings illustrate one convenient form of shuttle in accordance with the invention.

Figure 1 is a plan Figure 2 is an elevation Figure 3 is a. section on the line 3-3 of Figure 1 and Figures 4 and 5 are two views on a somewhat larger scale of the shield shewn in Figure 1.

In carrying our invention into effect in one convenient manner we provide a slot in the threader block a which is adapted to take a metal or other shield b which has its upper part bent round as clearly shewn in Figure 5 and is so shaped that its rear end 6 is disposed slightly below the rear end of the threader block, projecting into a recess 6 defined by the raised end of the block ing unthreaded by the 'what we claim as Britain July 2, 1927.

(Fig. 1), in order that in this way when once the weft has been threaded it is impossible for it to become unthreaded except when positively removed by hand so that there will be no danger of the shuttle becomwarp line due to the ballooning of the weft or for any other reason.

In order to facilitate the shuttle we provide a groove 0 in the nose end of the shuttle so as to permit the weft to sink sufiiciently low to pass under the threader block and shield and we also provide an undercut aperture or recess (Z in the wall of the shuttle, which aperture or recess operates in conjunction with the threader so that when afull pirn is knocked into the shuttle and delivered to the opposite side of the loom the weft automatically falls into the aperture or opening in the wall of the shuttle and by this means is prevented from being pushed or carried to the rear side of the shuttle when the weft is presented to the weft fork thus ensuring a. successful threading and minimizing weft breakages.

The shield or coil Z) is preferably such that it may be used either for a righthanded or for a left-handed threader block.

It will be understood that the invention is not to be limited to the foregoing details of construction which are given by way of example only and that a shuttle in accordance with the invention may be employed either for automatic weft replenishing looms or to ordinary looms not fitted with automatic weft replenishing means.

Having now described our new and by Letters Patent isr- A shuttle having threading; means com prising a threader block having its rear end raised to define a lateral recess. and a shield member. said shield member having a substantially vertical rectangular portion. the upper edge of said portion being bent 03's., the rear corner of said upper edge projecting into said lateral recess.

In testimony whereof we have signed our names to this specification.

SAMUEL TURNER. THOMAS EASTAUGH.

the threading of 

